Push-up trainer

ABSTRACT

A push-up trainer is comprised of a base having an underprop, a supporter movably mounted to the underprop of the base, two pressing bars each having an end pivotably mounted to the supporter, and two upholding members respectively detachably mounted to the pressing bars and each having a slidable member contacting against the base.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates generally to exercise apparatuses, andmore particularly to a push-up trainer.

2. Description of the Related Art

A conventional push-up trainer 80, as shown in FIG. 5, is comprised ofan elongated base 81, a supporter 82, two pressing bars 83, and aguiding member 84. The elongated base 81 includes two upholding members85 extending upwards. The supporter 82 includes a cushion 86 and twobearing bars 87 mounted to a bottom side of the cushion 86. Each of thetwo pressing bars 83 is pivotably connected to an apex of the upholdingmember 85, including an end pivotably mounted to a distal end of eachbearing bar 87 and the other end provided with a handlebar 88. Theguiding member 84 includes a first section 91 and a second section 92,which both are pivotably connected with each other to be collapsiblerelatively to each other. The guiding member 84 is mounted between thebase 81 and the supporter 82, having the first section 91 connected tothe cushion 86 and the second section 92 pivotably connected to the base81, for keeping the up-down movement of the supporter 82.

If the user intends to operate the push-up trainer 80 for push-upexercise, the user will hold the handlebars 88 respectively by theuser's hands, let the user's chest lie against the cushion 86, and pushand pull the two pressing bars 83 repeatedly to generate leverage;meanwhile, the leverage drives the bearing bars 87 and the cushion 86for up-down movement to further move the user's body up and down.

However, the conventional push-up trainer 80 is structurally complex,having numerous component parts, and the user is subject to injuryincurred by the collapsible guiding member 84. In addition, differentusers have different arm length or different length of two outstretchedarms, and the distance respectively between the two handlebars 88 andbetween each handlebar 88 and the cushion 86 is fixed, such that thedistance fails to be adjustable in accordance with the different usersto incur operational inconvenience.

SUMMARY OF THE INVENTION

The primary objective of the present invention is to provide a push-uptrainer, which is structurally preferably simple and safe.

The secondary objective of the present invention is to provide a push-uptrainer, which is adjustable in accordance with arm length of differentusers to reduce operational inconvenience.

The foregoing objectives of the present invention are attained by thepush-up trainer, which is comprised of a base having an underprop, asupporter movably mounted to the underprop of the base, two pressingbars each having an end pivotably connected to the supporter, and twoupholding members respectively detachably mounted to the pressing barsand each having a slidable member contacting against the base.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an elevation view of a preferred embodiment of the presentinvention;

FIG. 2 is a top view of the preferred embodiment of the presentinvention;

FIG. 3 is a sectional view taken along a line 3-3 indicated in FIG. 1;

FIG. 4 is an elevation view of the preferred embodiment of the presentinvention, showing that the user is operating the push-up trainer; and

FIG. 5 is a perspective view of a prior art.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

Referring to FIGS. 1-3, a push-up trainer 10 constructed according to apreferred embodiment of the present invention is comprised of a base 12,a supporter 14, two pressing bars 16, and two upholding members 18.

The base 12 is normally placed on the floor, including a circularchassis 20, an upright underprop 21 extending upwards from a top centerof the chassis 20, two elongated bottom struts 22 formed at two oppositesides of an peripheral edge of the chassis 20, and two lateral struts 24horizontally perpendicularly formed respectively at distal ends of thetwo bottom struts 22. Each of the bottom struts 22 is provided with aguide slot 26 recessed downwards from a top side thereof.

The supporter 14 includes a sleeve 28, a cushion 30 mounted on a topside of the sleeve 28, and two pivoting portions 32 respectively mountedat two opposite sides of an outer peripheral edge of a bottom side ofthe sleeve 28. The sleeve 28 is coaxially fitted to the underprop 21 tobe slidable along the underprop 21.

Each of the pressing bars 16 includes an elongated tubular external bar34 and an internal bar 36 fitted into the external bar 34. Each of theinternal bars 36 has an end inserted into the external bar 34 forslidable movement along a long axle of the external bar 34, and theother end extending outwards and provided with a handlebar 38. Eachinternal bar 36 has three positioning holes 40 axially arranged thereonat an equal interval. The external bar 34 has a pin 42 detachablyinserted into one of the positioning holes 40 for manipulating thedistance between the handlebar 38 and the external bar 34. The externalbar 34 has the other end pivotably mounted to the pivoting portion 32 ofthe supporter 14 by a pivoting pin 44, such that each pressing bar 16can be pivotable on the pivoting pin 44. Further, the external bar 34has a plurality of through holes 46 running therethrough and positionedrelatively to the guide slot 26 of the base 12.

Each of the upholding members 18 is U-shaped, including a slidablemember 48, which is embodied as a pulley, rotatably provided at_a bottomend thereof, and a locking member 50, which can embodied as a pin or abolt, detachably inserted through a top end thereof into one of thethrough holes 46 of the pressing bar 16 to enable the upholding member18 to be perpendicular to the pressing bar 16. Each of the slidablemembers 48 extends towards the base 12 to contact against the guide slot26. When the locking member 50 is fixedly inserted into differentpositioning holes 46, an angle between each pressing bar 16 and the base12 can be adjustable.

From the above recitation, when the user does the push-up exercise onthe push-up trainer 10, the user has the hands respectively hold thehandlebars 38 and the chest lie against the cushion 30. As shown in FIG.4, the user's hands push the handlebars 38 to move the handlebars 38downwards, such that the pressing bars 16 drive the sleeve 28 byleverage on a fulcrum, at which the slidable member 48 contacts againstthe base 12, to move upwards together with the cushion 30 along theunderprop 21. In the meantime, the user's body lies against the cushionfor auxiliary localization, thereby keeping the body in horizontallystationary position while the user repeats the push-up exercise. Inaddition, the sleeve 28 and the cushion 30 of the supporter 14 will nothurt the user while they are moved upwards and downwards. When anotheruser of different arm length intends to operate the push-up trainer 10,the trainer 10 can be also applicable to this user by slidably movingeach of the internal bars 36 to a position that fits the user's armlength relatively to the external bar 34 and fixing the internal tube 36to the external bar 34 by the pin 42. If the user intends to strengthenthe muscle of the arms with different strength, one or both of theupholding members 18 can be fixed respectively to different throughholes 46 of one or both of the pressing bars 16 by the locking members50, such that there are different angles formed between the base 12 andthe pressing bar 16. Meanwhile, the user has to exert different strengthto push the pressing bars 16 to drive the sleeve 28 to move upwards,thereby strengthening the muscle of the arms with different strength.

In conclusion, the present invention is structurally simple and safe,and adjustable according to different users of different arm length toreduce operational inconvenience.

1. A push-up trainer comprising: a base having an underprop; a supporterslidably mounted to said underprop of said base; two pressing bars eachhaving an end pivotably mounted to said supporter; and two upholdingmembers respectively detachably mounted to said pressing bars, each ofsaid upholding members having a slidable member contacting against saidbases; wherein said base further comprises two guide slots, and saidslidable members respectively contact against said guide slots. 2.(canceled)
 3. The push-up trainer as defined in claim 1, wherein saidsupporter further comprises a sleeve and a cushion mounted at a top sideof said sleeve; said underprop of said base is upright mounted to saidbase, said sleeve being coaxially fitted to said underprop for slidablemovement along said underprop.
 4. The push-up trainer as defined inclaim 1, wherein each of said pressing bars comprises an external barand internal bar, said internal bar having a handlebar and slidablymounted to said external bar.
 5. The push-up trainer as defined in claim4, wherein said external and internal bars are elongated tubes, saidinternal bar having an end inserted into said external bar and the otherend extending out of said external bar; said handlebar is mounted to theother end of said internal bar, said internal bar having a plurality ofpositioning holes, said external bar having a pin, said pin beingdetachably inserted into one of said positioning holes for manipulatingthe distance between said handlebar and said external bar.
 6. Thepush-up trainer as defined in claim 1, wherein said pressing barcomprises a plurality of through holes; said upholding member isdetachably mounted to said pressing bar by a locking member insertedinto one of said through holes.